Bottom heat function does not work; baking results are pale at the bottom; F07 may be displayed.

Safety first: Isolate the oven from mains power before removing any panels or accessing the base.

Step-by-step checks:

• Access bottom element: Depending on model, remove the oven base panel inside the cavity or access from below after removing the oven from the cabinet.
• Continuity test: Disconnect the element leads and measure resistance. An open circuit indicates a failed element that must be replaced.
• Inspect for overheating: Check for burnt insulation or connectors. Replace any damaged high-temperature wiring and terminals.
• Install new element: Fit the correct V-ZUG bottom heating element, ensuring it sits flat and is secured with original screws or clips. Reconnect wires firmly.

When to call a technician: If the element is good but F07 persists, the issue may be on the power module or control board and should be diagnosed by a professional.